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      Question

      In a school, 30 boys scored an average of 76 marks while

      40 girls scored an average of 88 marks. What is the average marks of all students together? (Round off your answer to the nearest integer)
      A 53 Correct Answer Incorrect Answer
      B 47 Correct Answer Incorrect Answer
      C 71 Correct Answer Incorrect Answer
      D 83 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Required average = (30 × 76 + 40 × 88) ÷ (30 + 40) = (2,280 + 3,520) ÷ 70 = (5,800 ÷ 70) ~ 83

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